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Acer palmatum 'Atropurpureum' (Purple Japanese maple)

Intermediate
skill rating
2 hours care
per year
8m
Max height
8m
Max spread
20-50 years
To maturity

Plant details

Botanical name

Acer palmatum 'Atropurpureum'

Other names

Purple Japanese maple, Japanese maple 'Atropurpureum', Acer palmatum f. atropurpureum

Genus

Acer Acer

Variety or Cultivar

'Atropurpureum' _ 'Atropurpureum' is a small, bushy, rounded, deciduous tree with deeply lobed, red-purple leaves turning bright red in autumn and inconspicuous red-purple flowers in spring, sometimes followed by winged, purple fruit.


Acer palmatum 'Atropurpureum' is: Deciduous

Habit

Bushy, Rounded

Flower

Reddish-purple in Spring

Foliage

Reddish-purple in Spring; Reddish-purple in Summer; Bright-red in Autumn

How to care

Watch out for

Specific pests

Horse chestnut scale , Aphids Horse chestnut scale , Aphids

Tar spot , Honey fungus , Verticillium wilt Tar spot , Honey fungus , Verticillium wilt

General care

Pruning

Pruning group 1. Prune in late autumn to midwinter only.

Propagation methods

Grafting, Softwood cuttings


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Where to grow

Acer palmatum 'Atropurpureum' (Purple Japanese maple) will reach a height of 8m and a spread of 8m after 20-50 years.

Suggested uses

Low Maintenance, Cottage/Informal, City, Architectural, Foliage only

Cultivation

Grow in moist but well-drained, acid or neutral soil. Leaf colour is best in part shade, although full sun can be tolerated. Leaf scorch can by caused by dry soil or excessive exposure to frost, sun, or wind when leaves are young.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained

Soil pH

Acid, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Acer palmatum 'Atropurpureum'

Other names

Purple Japanese maple, Japanese maple 'Atropurpureum', Acer palmatum f. atropurpureum

Genus

Acer Acer

Variety or Cultivar

'Atropurpureum' _ 'Atropurpureum' is a small, bushy, rounded, deciduous tree with deeply lobed, red-purple leaves turning bright red in autumn and inconspicuous red-purple flowers in spring, sometimes followed by winged, purple fruit.

Foliage

Deciduous

Habit

Bushy, Rounded


Colour

Flower

Reddish-purple in Spring

Foliage

Reddish-purple in Spring; Reddish-purple in Summer; Bright-red in Autumn


How to care

Watch out for

Specific pests

Horse chestnut scale , Aphids

Specific diseases

Tar spot , Honey fungus , Verticillium wilt

General care

Pruning

Pruning group 1. Prune in late autumn to midwinter only.

Propagation methods

Grafting, Softwood cuttings


Monthly care advice


Where to grow

Acer palmatum 'Atropurpureum' (Purple Japanese maple) will reach a height of 8m and a spread of 8m after 20-50 years.

Suggested uses

Low Maintenance, Cottage/Informal, City, Architectural, Foliage only

Cultivation

Grow in moist but well-drained, acid or neutral soil. Leaf colour is best in part shade, although full sun can be tolerated. Leaf scorch can by caused by dry soil or excessive exposure to frost, sun, or wind when leaves are young.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained

Soil pH

Acid, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 9, Zone 8, Zone 7, Zone 6, Zone 5

Defra's Risk register #1

Plant name

Acer palmatum 'Atropurpureum' (Purple Japanese maple)

Common pest name

Alfalfa dwarf; Anaheim disease; California vine disease; Dwarf disease of alfalfa; Dwarf disease of lucerne; Leaf scald of oleander; Leaf scald of plum; Leaf scorch; Phony disease of peach; Pierce's disease of grapevine; Variegated chlorosis of citrus

Scientific pest name

Xylella fastidiosa subsp. multiplex

Type

Bacterium

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

A bacterial disease with a wide host range detected in Corsica. Although EU regulated; there remains some concern about the risk of introduction. This subspecies is known to be able to thrive in cooler climates. Should an outbreak occur; there would be a need for eradication action which would result in environmental and social impacts.

Defra's Risk register #2

Plant name

Acer palmatum 'Atropurpureum' (Purple Japanese maple)

Common pest name

Apple root knot nematode

Scientific pest name

Meloidogyne mali

Type

Nematode

Current status in UK

Unknown

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

UK (along with certain other European countries) received potentially infested trees in 1992; but these were destroyed at the end of the trial period and targeted surveillance has failed to find any trace of the nematode. Main impacts are on elm; apple and mulberry and industry should source such material carefully.

Defra's Risk register #3

Plant name

Acer palmatum 'Atropurpureum' (Purple Japanese maple)

Common pest name

Japanese long scale; Japanese maple scale; Long scale; Japanese; Pear white scale

Scientific pest name

Lopholeucaspis japonica

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

Regulated only on Citrus at present; regulation on other hosts needs to be considered. Only likely to be a pest under glass in UK.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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Acer Japanese Maple

Acer Japanese Maple

(27/07/2013)

(12/07/2012)

(12/08/2012)

May 2014 Birthday Present from Mum and Dad

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This plant likes... Garden match
Soil types: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Moist but well-drained Tell us...
Soil pH: Acid, Neutral Tell us...
Light: Partial Shade, Full Sun Tell us...
Aspect: South, East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

DISCUSS THIS PLANT

Purple turning green?

Can you advise? Most of our Acer's leaves are purple. However the tops of some leaves, especially under the foliage, are green. And its not just the underside of the leaf. Should I do anything about… read more

Can you please tell me which Miracle-gro feed do I use on my Acer Atropurpureum? I think it should be a Hi-Nitrogen¬Ě feed but none of the feeds that I have seen say if it is Hi-Nitrogen or otherwise. If you can help, I would be grateful.

Can you please tell me which Miracle-gro feed do I use on my Acer Atropurpureum? I think it should be a Hi-Nitrogen¬Ě feed but none of the feeds that I have seen say if it is Hi-Nitrogen or… read more

Help with leaf damage

My young maple is showing signs of damage. It started on the bottom leaves and now has spread to all the leaves. Its as though they are withering and drying out on the edges and with speckles now all… read more

There are 4 active discussions about Acer palmatum 'Atropurpureum' (Purple Japanese maple)

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